Update README.md

Author: zolem

README.md

@@ -1,2 +1,16 @@
 # vim-projectrc
 Simple way to have project level vim settings
+
+## Why did I create it
+I use my fork of [vdebug](https://github.com/zolem/vdebug) and instead of having a ton of pathmaps this allows me to add pathmaps on a per project basis.
+
+## Usage
+Just add the *.project.vimrc* to the root directory of your project
+This file will be sourced as long as you open vim from that directory or any sub directory.
+
+## Settings
+There is only one setting. If you don't like the .project.vimrc name feel free to change it:
+```vimL
+let g:projectrc_filename = 'mynewfilename'
+```
+This should work for you if not submit an issue and I'll fix it as soon as possible.